Answer:

No. Variables can be declared in the middle of a program. You should declare them in whatever location makes the program easiest to understand.

A Run of the Program

Here (again) is a sample data file for the program, called student.data.

Here is a sample run of the program.

C:/users/default/JavaLessons>java TestGroups

File name? student.data
Group A average: 93.33333333333333
Group B average: 83.75

C:/users/default/JavaLessons>

QUESTION 12:

How will the user indicate if group has no data?
Will the program run correctly if one or more groups has no data?